naa a22 4500 510766196 CHVBK 20180411083157.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11630-013-0654-6 doi (NATIONALLICENCE)springer-10.1007/s11630-013-0654-6 Combustion stabilization based on a center flame strut in a liquid kerosene fueled supersonic combustor [Elektronische Daten] [Jichao Hu, Jiang Qin, Juntao Chang, Wen Bao, Youhai Zong, Qingchun Yang] A newly designed strut is proposed in this paper for fuel injection and flame holding in a liquid-kerosene-fueled supersonic combustor. The thickness of the strut is 8mm and the front blockage is about 8%. The characteristic of this strut is that extra oxygen can be injected through a set of orifices at the back of the strut, which can change the local flow field structure and ER (Equivalence Ratio). Based on the above mentioned strut, a stable local flame is generated at the back of the strut and the main combustion can be organized around this local fire. Numerical simulation is conducted to compare the local flow field distribution at the back of the strut with/without extra oxygen injection. Experiments are conducted to test the combustion characteristics based on this fuel injection and flame holding strategy. The temperature distribution which can reflect the local flame characteristic has been measured in the experiments conducted under cold incoming supersonic air flow condition. In addition, the overall combustion performance in a full-scale supersonic combustor has been evaluated in the experiments conducted under hot incoming supersonic air flow condition. Results show that this strut strategy is very promising since it can organize stable supersonic combustion at the center of the combustor without any cavity or rearward facing step. Besides that, even with the 8mm thick strut, the combustion can be stable in a wide range of ER from 0.25-1 by using liquid room-temperature kerosene. Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg, 2013 strut nationallicence center flame nationallicence oxygen nationallicence liquid-kerosene-fueled supersonic combustor nationallicence Hu Jichao Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Qin Jiang Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Chang Juntao Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Bao Wen Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Zong Youhai Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Yang Qingchun Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut Journal of Thermal Science Springer Berlin Heidelberg 22/5(2013-10-01), 497-504 1003-2169 22:5<497 2013 22 11630 https://doi.org/10.1007/s11630-013-0654-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11630-013-0654-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hu Jichao Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 700 1- Qin Jiang Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 700 1- Chang Juntao Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 700 1- Bao Wen Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 700 1- Zong Youhai Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 700 1- Yang Qingchun Harbin Institute of Technology, No.92.Xidazhi Street, 150001, Harbin, China aut NATIONALLICENCE 773 0- Journal of Thermal Science Springer Berlin Heidelberg 22/5(2013-10-01), 497-504 1003-2169 22:5<497 2013 22 11630 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer